My vote would go to the Icelandic krona since Iceland seems fairly anti-banking as a country.
I'm not sure your question makes sense.
From http://en.wikipedia.org/wiki/Reserve_currency
It might make sense for bitcoin to BE a reserve currency, but it doesn't make sense for it to HAVE a reserve currency since it is neither a government nor an institution.
Right, I clearly need to explain myself better in these forums.
I meant it in a somewhat different term than the traditional use the term reserve currency since you're right, the term doesn't make sense for bitcoins. But in most places, you can't pay all your bills with bitcoins, so what I meant was if you had to pick a currency to choose as a preferred currency to exchange from bitcoins -> fiat, which would you prefer?